/* ============================================================
   GEO Lab — Cyber Dark Theme
   ============================================================ */

:root {
  --bg-0: #060912;
  --bg-1: #0a0e1a;
  --bg-2: #0f1729;
  --bg-3: #131d36;
  --line: rgba(0, 212, 255, 0.18);
  --line-soft: rgba(255, 255, 255, 0.08);
  --text-0: #e7ecff;
  --text-1: #c2cae0;
  --text-2: #8892b0;
  --text-3: #5b6480;
  --cyan: #00d4ff;
  --cyan-soft: rgba(0, 212, 255, 0.16);
  --magenta: #b537f2;
  --magenta-soft: rgba(181, 55, 242, 0.18);
  --lime: #39ff14;
  --lime-soft: rgba(57, 255, 20, 0.16);
  --amber: #ffb547;
  --danger: #ff4d6d;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-neon-cyan: 0 0 0 1px rgba(0, 212, 255, 0.4), 0 0 24px -4px rgba(0, 212, 255, 0.45);
  --shadow-neon-magenta: 0 0 0 1px rgba(181, 55, 242, 0.4), 0 0 28px -6px rgba(181, 55, 242, 0.55);
  --font-display: 'Orbitron', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  color: var(--text-1);
  background: var(--bg-0);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--cyan); text-decoration: none; transition: color .2s; }
a:hover { color: #fff; }
img { max-width: 100%; }

/* ===== 背景层 ===== */
.bg-grid {
  position: fixed; inset: 0; z-index: -3; pointer-events: none;
  background:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px) 0 0 / 60px 60px,
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px) 0 0 / 60px 60px,
    radial-gradient(ellipse at top, #0f1729 0%, var(--bg-0) 60%);
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 30%, rgba(0,0,0,0.4) 80%);
}
.bg-glow {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(600px 400px at 15% 10%, rgba(0,212,255,0.18), transparent 60%),
    radial-gradient(700px 450px at 85% 0%, rgba(181,55,242,0.18), transparent 60%),
    radial-gradient(900px 500px at 50% 100%, rgba(57,255,20,0.06), transparent 70%);
}
.bg-scan {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 3px,
    rgba(255,255,255,0.012) 3px,
    rgba(255,255,255,0.012) 4px
  );
  mix-blend-mode: overlay;
}

/* ===== 通用容器 ===== */
.section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 120px 32px 60px;
}
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--cyan);
  padding: 6px 14px;
  border: 1px solid var(--cyan-soft);
  border-radius: 999px;
  background: rgba(0,212,255,0.06);
  margin-bottom: 18px;
}
.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 44px);
  color: var(--text-0);
  margin: 0 0 12px;
  letter-spacing: 0.02em;
}
.section-desc {
  color: var(--text-2);
  font-size: 15px;
  margin: 0 auto;
  max-width: 600px;
}

.grad-cyan {
  background: linear-gradient(135deg, #00d4ff 0%, #00ffd1 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.grad-magenta {
  background: linear-gradient(135deg, #b537f2 0%, #ff4ddb 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== 顶部导航 ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  background: rgba(6,9,18,0.7);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--text-0);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.05em;
}
.brand-mark {
  width: 28px; height: 28px;
  background:
    conic-gradient(from 0deg, var(--cyan), var(--magenta), var(--cyan));
  border-radius: 8px;
  position: relative;
  box-shadow: 0 0 16px rgba(0,212,255,0.6);
}
.brand-mark::after {
  content: '';
  position: absolute; inset: 5px;
  background: var(--bg-0);
  border-radius: 4px;
}
.brand-text-accent { color: var(--cyan); }
.nav-links {
  display: flex; gap: 4px;
  margin-left: 16px;
}
.nav-links a {
  color: var(--text-2);
  font-size: 14px;
  padding: 6px 14px;
  border-radius: 8px;
  transition: all .2s;
}
.nav-links a:hover { color: var(--text-0); background: var(--bg-2); }
.nav-actions {
  margin-left: auto;
  display: flex; align-items: center; gap: 12px;
}
.model-indicator {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  background: var(--bg-2);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
}
.model-indicator .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 8px currentColor;
}
.model-indicator.live { color: var(--lime); }
.model-indicator.live .dot { background: var(--lime); animation: pulse 1.6s infinite; }
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-1);
  cursor: pointer;
  transition: all .2s;
  text-decoration: none;
  user-select: none;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  color: #001018;
  background: linear-gradient(135deg, #00d4ff 0%, #00ffd1 100%);
  box-shadow: 0 4px 24px -4px rgba(0,212,255,0.5);
  font-weight: 600;
}
.btn-primary:hover { box-shadow: 0 6px 32px -4px rgba(0,212,255,0.7); }
.btn-primary:disabled {
  opacity: 0.4; cursor: not-allowed; transform: none;
  box-shadow: none;
}
.btn-ghost {
  border-color: var(--line);
  color: var(--text-1);
  background: rgba(15,23,41,0.4);
}
.btn-ghost:hover {
  border-color: var(--cyan);
  color: var(--text-0);
  background: rgba(0,212,255,0.08);
}
.btn-magenta {
  color: #fff;
  background: linear-gradient(135deg, #b537f2 0%, #ff4ddb 100%);
  box-shadow: 0 4px 24px -4px rgba(181,55,242,0.5);
}
.btn-icon {
  padding: 6px 10px;
  font-size: 16px;
  line-height: 1;
}
.btn-sm { padding: 6px 12px; font-size: 12px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 120px 32px 60px;
  max-width: 1240px;
  margin: 0 auto;
}
.hero-inner {
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px;
  background: rgba(0,212,255,0.08);
  border: 1px solid var(--cyan-soft);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  margin-bottom: 28px;
}
.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: pulse 2s infinite;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--text-0);
  margin: 0 0 24px;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-2);
  margin: 0 auto 36px;
  max-width: 720px;
  line-height: 1.75;
}
.hero-cta {
  display: flex; gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 720px;
  margin: 0 auto;
}
.stat {
  padding: 20px;
  background: linear-gradient(180deg, rgba(15,23,41,0.5), rgba(15,23,41,0.2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.stat::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}
.stat-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 36px;
  color: var(--cyan);
  text-shadow: 0 0 16px rgba(0,212,255,0.5);
}
.stat-label {
  color: var(--text-3);
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ===== Skill cards ===== */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.skill-card {
  position: relative;
  background: linear-gradient(180deg, rgba(15,23,41,0.85) 0%, rgba(15,23,41,0.45) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: all .3s;
  cursor: pointer;
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, transparent, var(--cyan), transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .3s;
  pointer-events: none;
}
.skill-card:hover::before { opacity: 1; }
.skill-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-neon-cyan); }
.skill-card.expanded { box-shadow: var(--shadow-neon-cyan); }
.skill-card-head {
  display: flex; align-items: flex-start; gap: 14px;
  margin-bottom: 14px;
}
.skill-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--cyan);
  background: rgba(0,212,255,0.08);
  border: 1px solid var(--cyan-soft);
  flex-shrink: 0;
}
.skill-card.alt .skill-icon { color: var(--magenta); background: var(--magenta-soft); border-color: rgba(181,55,242,0.3); }
.skill-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--text-0);
  margin: 0 0 4px;
  letter-spacing: 0.02em;
}
.skill-slug {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
}
.skill-desc { color: var(--text-2); font-size: 14px; margin: 0 0 16px; line-height: 1.6; }
.skill-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.skill-meta-item {
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12px;
}
.skill-meta-label {
  display: block;
  font-family: var(--font-mono);
  color: var(--text-3);
  font-size: 10px;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.skill-meta-value { color: var(--text-1); }

.skill-card-detail {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  display: none;
}
.skill-card.expanded .skill-card-detail { display: block; }
.skill-card-detail h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.15em;
  margin: 14px 0 8px;
  text-transform: uppercase;
}
.skill-card-detail h4:first-child { margin-top: 0; }
.skill-card-detail ul {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 13px;
  color: var(--text-1);
}
.skill-card-detail li {
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}
.skill-card-detail li::before {
  content: '▸';
  position: absolute; left: 0;
  color: var(--cyan);
}

/* ===== Wizard ===== */
.wizard {
  background: linear-gradient(180deg, rgba(15,23,41,0.6), rgba(15,23,41,0.3));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
}
.wizard-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 32px;
}
.wizard-step {
  text-align: center;
  padding: 12px 8px;
  border-radius: 10px;
  cursor: pointer;
  transition: all .2s;
  border: 1px solid transparent;
  background: rgba(0,0,0,0.25);
}
.wizard-step:hover { border-color: var(--line); }
.wizard-step.active {
  border-color: var(--cyan);
  background: rgba(0,212,255,0.08);
  box-shadow: 0 0 0 1px var(--cyan-soft);
}
.wizard-step.done {
  background: rgba(57,255,20,0.06);
  border-color: rgba(57,255,20,0.3);
}
.wizard-step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.1em;
}
.wizard-step.active .wizard-step-num { color: var(--cyan); }
.wizard-step.done .wizard-step-num { color: var(--lime); }
.wizard-step-name {
  font-size: 13px;
  color: var(--text-1);
  font-weight: 500;
  margin-top: 4px;
}
.wizard-step.active .wizard-step-name { color: var(--text-0); }

.wizard-panel { min-height: 320px; margin-bottom: 24px; }
.wizard-panel-head { margin-bottom: 20px; }
.wizard-panel-title {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--text-0);
  margin: 0 0 6px;
}
.wizard-panel-desc { color: var(--text-2); font-size: 14px; margin: 0; }

.wizard-footer {
  display: flex; align-items: center; gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
}
.wizard-progress {
  flex: 1;
  display: flex; align-items: center; gap: 12px;
}
.wizard-progress-bar {
  flex: 1;
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  overflow: hidden;
}
.wizard-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  width: 20%;
  transition: width .3s;
  box-shadow: 0 0 12px var(--cyan);
}
.wizard-progress-text {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  white-space: nowrap;
}

/* ===== Form ===== */
.field { margin-bottom: 20px; }
.field-row { display: flex; gap: 12px; margin-top: 12px; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.field-hint {
  font-size: 12px;
  color: var(--text-3);
  margin: 8px 0 0;
  line-height: 1.5;
}
.input, select.input, textarea.input {
  width: 100%;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text-0);
  font-family: var(--font-body);
  font-size: 14px;
  transition: border-color .2s, box-shadow .2s;
}
textarea.input { min-height: 120px; resize: vertical; font-family: var(--font-mono); font-size: 13px; line-height: 1.6; }
.input:focus, select.input:focus, textarea.input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.15);
}
.input::placeholder { color: var(--text-3); }

.seg {
  display: inline-flex;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 3px;
  gap: 2px;
}
.seg button {
  background: transparent;
  border: none;
  color: var(--text-2);
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
  font-family: var(--font-body);
}
.seg button:hover { color: var(--text-0); }
.seg button.active {
  background: var(--cyan);
  color: #001018;
  font-weight: 600;
}

.chips {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.chip {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.25);
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
  color: var(--text-1);
  user-select: none;
}
.chip:hover { border-color: var(--cyan); color: var(--text-0); }
.chip.active {
  border-color: var(--cyan);
  background: rgba(0,212,255,0.12);
  color: var(--cyan);
  box-shadow: 0 0 12px rgba(0,212,255,0.2);
}

/* 表格 */
.table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(0,0,0,0.25);
  margin-top: 12px;
}
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.data th, table.data td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
}
table.data th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  background: rgba(0,0,0,0.3);
}
table.data tr:last-child td { border-bottom: none; }
table.data tr:hover td { background: rgba(0,212,255,0.04); }
table.data td.num { font-family: var(--font-mono); color: var(--cyan); }
table.data .tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-family: var(--font-mono);
}
.tag-strong { background: var(--lime-soft); color: var(--lime); }
.tag-mid { background: rgba(255,181,71,0.12); color: var(--amber); }
.tag-soft { background: rgba(255,255,255,0.06); color: var(--text-2); }

/* 结果卡片 */
.result {
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 16px;
  position: relative;
}
.result-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px;
}
.result-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--cyan);
  text-transform: uppercase;
}
.result-actions { display: flex; gap: 8px; }
.result-body { font-size: 14px; line-height: 1.7; color: var(--text-1); }
.result-body h3 { font-family: var(--font-display); color: var(--text-0); margin: 18px 0 8px; }
.result-body h4 { color: var(--text-0); margin: 14px 0 6px; }
.result-body code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(0,212,255,0.08);
  color: var(--cyan);
  padding: 1px 6px;
  border-radius: 4px;
}
.result-body pre {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 14px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-1);
}
.result-body ul, .result-body ol { padding-left: 22px; }

/* Tabs 平台版本 */
.platform-tabs {
  display: flex; gap: 4px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 12px;
  overflow-x: auto;
}
.platform-tab {
  background: transparent;
  border: none;
  color: var(--text-2);
  padding: 8px 16px;
  border-radius: 7px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  font-family: var(--font-body);
  transition: all .2s;
}
.platform-tab:hover { color: var(--text-0); }
.platform-tab.active {
  background: linear-gradient(135deg, rgba(0,212,255,0.2), rgba(181,55,242,0.2));
  color: var(--text-0);
  border: 1px solid var(--cyan-soft);
}

/* 对比卡 豆包前后 */
.cmp {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.cmp-card {
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.cmp-card.before { border-color: rgba(255,77,109,0.3); }
.cmp-card.after { border-color: rgba(57,255,20,0.3); }
.cmp-head {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.cmp-card.before .cmp-head { color: var(--danger); }
.cmp-card.after .cmp-head { color: var(--lime); }

/* Tool tabs */
.tool-tabs {
  display: flex; gap: 4px;
  background: rgba(15,23,41,0.5);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 24px;
  max-width: 540px;
}
.tool-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-2);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  font-family: var(--font-body);
  transition: all .2s;
}
.tool-tab.active {
  background: linear-gradient(135deg, var(--cyan) 0%, rgba(181,55,242,0.6) 200%);
  color: #001018;
  font-weight: 600;
}
.tool-body {
  background: linear-gradient(180deg, rgba(15,23,41,0.6), rgba(15,23,41,0.3));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.about-card {
  background: linear-gradient(180deg, rgba(15,23,41,0.5), rgba(15,23,41,0.2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.about-card h3 {
  font-family: var(--font-display);
  color: var(--text-0);
  font-size: 16px;
  margin: 0 0 10px;
}
.about-card p {
  margin: 0;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}

/* Footer */
.foot {
  border-top: 1px solid var(--line-soft);
  padding: 32px 0;
  margin-top: 80px;
  background: rgba(0,0,0,0.3);
}
.foot-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
  color: var(--text-3);
  font-size: 13px;
}
.foot-links { display: flex; gap: 24px; }
.foot-links a { color: var(--text-2); }
.foot-links a:hover { color: var(--cyan); }

/* Drawer */
.drawer {
  position: fixed; inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: 0;
  transition: opacity .3s;
}
.drawer.open { pointer-events: auto; opacity: 1; }
.drawer-mask {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
}
.drawer-panel {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: min(460px, 92vw);
  background: var(--bg-1);
  border-left: 1px solid var(--line);
  box-shadow: -20px 0 60px rgba(0,0,0,0.5);
  transform: translateX(100%);
  transition: transform .3s;
  display: flex; flex-direction: column;
}
.drawer.open .drawer-panel { transform: translateX(0); }
.drawer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line-soft);
}
.drawer-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--text-0);
}
.drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}
.drawer-divider {
  height: 1px;
  background: var(--line-soft);
  margin: 24px 0;
}

/* Toast */
.toast-host {
  position: fixed; bottom: 24px; right: 24px;
  z-index: 200;
  display: flex; flex-direction: column; gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--bg-2);
  border: 1px solid var(--cyan);
  color: var(--text-0);
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 13px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 16px var(--cyan-soft);
  animation: toast-in .25s ease;
  pointer-events: auto;
  min-width: 200px;
}
.toast.err { border-color: var(--danger); box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 16px rgba(255,77,109,0.2); }
.toast.ok { border-color: var(--lime); box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 16px var(--lime-soft); }
@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Loading 打字机 */
.typing-dots {
  display: inline-flex; gap: 4px; align-items: center;
}
.typing-dots span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  animation: dots 1.4s infinite ease-in-out;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dots {
  0%, 80%, 100% { transform: scale(0.5); opacity: 0.5; }
  40% { transform: scale(1); opacity: 1; }
}
.loading-box {
  display: flex; align-items: center; gap: 12px;
  color: var(--text-2);
  font-size: 14px;
  padding: 24px;
  border: 1px dashed var(--line);
  border-radius: 10px;
  background: rgba(0,212,255,0.03);
}

/* 响应式 */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .section { padding: 80px 20px 40px; }
  .hero { padding: 60px 20px 40px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .wizard { padding: 20px; }
  .wizard-steps { grid-template-columns: repeat(5, 1fr); gap: 4px; }
  .wizard-step { padding: 8px 4px; }
  .wizard-step-name { font-size: 11px; }
  .cmp { grid-template-columns: 1fr; }
  .tool-tabs { max-width: 100%; flex-wrap: wrap; }
  .tool-tab { font-size: 13px; padding: 8px 12px; }
}